Which of the following best describes a mixture?

If I add vinegar to baking soda, a chemical reaction takes place and carbon dioxide is produced. Which of the following will increase the speed of the chemical reaction?

David watches a burning candle to determine whether a chemical reaction is taking place. Which of these observations shows evidence of a chemical reaction?

In a chemical reaction, if more energy is required to make the chemical bonds than to break them apart, the reaction is endothermic, so we see a

Which of the following is an example of a homogenous mixture?

An example of a heterogenous mixture is

What is an example of a colloid?

__________ is known as the universal solvent because it dissolves more solutes than any other solvent.

A solute is different than a solvent because a SOLUTE...

A compound is a substance that can be broken down into simpler substances and is made from atoms of two or more elements. Which of the following is not a compound?

Which of the following is the best example of a suspension?

The choices below list one example of a physical change and two examples of a chemical change. Which is a physical change?

Mr. Bowman’s science class is learning that substances can change in many ways. Sometimes a change will produce a new substance. This is called a chemical change. Which of the following is an example of a chemical change?

A chemical change differs from a physical change because in a chemical change a substance

According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?

The fire in a fireplace is an example of an exothermic reaction. Explain what happens in an exothermic reaction.

Endothermic is

When chemical reactions break down a complex compound into two or more simpler compounds we call this kind of chemical reaction ______.

synthesis

Which equation represents a single replacement reaction?

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